Product Compare
AMD Radeon E8870 vs AMD Radeon HD 6850 X2
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Sep 2015 | Sep 2011 |
| Generation | Embedded | Northern Islands |
| Type | Mobile | Desktop |
| Bus Interface | MXM-B (3.0) | PCIe 2.0 x16 |
| Clock Speeds | ||
| Memory Clock | 1500 MHz | 1050 MHz |
| Memory | ||
| Memory Size | 4GB | 2GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 128bit | 256bit |
| Bandwidth | 96.00GB/s | 134.4GB/s |
| Render Config | ||
| Compute Units | 12 | 12 |
| Shading Units | 768 | 960 |
| TMUs | 48 | 48 |
| ROPs | 16 | 32 |
| L1 Cache | 16 KB (per CU) | 8 KB (per CU) |
| L2 Cache | 256 KB | 512 KB |
| Theoretical Performance | ||
| Pixel Rate | 16.00 GPixel/s | 25.60 GPixel/s |
| Texture Rate | 48.00 GTexel/s | 38.40 GTexel/s |
| FP32 (float) | 1.536 TFLOPS | 1.536 TFLOPS |
| FP64 (double) | 96.00 GFLOPS | |
| Graphics Processor | ||
| GPU Name | Saturn | Barts |
| GPU Variant | Saturn PRO | Barts PRO(215-0798006) |
| Architecture | GCN 2.0 | TeraScale 2 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 40 nm |
| Transistors | 2.08 billion | 1.7 billion |
| Die Size | 160 mm² | 255 mm² |
| Board Design | ||
| TDP | 75W | 254W |
| Outputs | No outputs | 2x DVI1x HDMI 1.3a1x DisplayPort 1.1 |
| Power Connectors | None | 2x 8-pin |
| Suggested PSU | 600 W | |
| Graphics Features | ||
| DirectX | 12 (12_0) | 11.2 (11_0) |
| OpenGL | 4.6 | 4.4 |
| OpenCL | 2.0 | 1.2 |
| Vulkan | 1.2 | N/A |
| Shader Model | 6.3 | 5.0 |